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经营范围
发明名称
STRUCTURE OF TUNNEL
摘要
申请公布号
JPH06248891(A)
申请公布日期
1994.09.06
申请号
JP19930064820
申请日期
1993.03.02
申请人
BRIDGESTONE CORP
发明人
WAKAMIYA MASATOSHI
分类号
E21D11/38;(IPC1-7):E21D11/38
主分类号
E21D11/38
代理机构
代理人
主权项
地址
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